Molarity
A conversion factor that relates the amounts in moles of any two substances involved in a chemical reaction.
Mole ratio
If a substance has a pH of 7, what is it?
Neutral
What is thermodynamics?
The study of the effcts of work,heat and energ on a system.
CO2 + 2LiOH --> Li2CO3 + H2O
How many moles of lithium hydroxide are required to react with 20 mol of CO2?
40 mol LiOH
What are 3 examples of substances that are bases?
Sodium Hydroxide, Potassium Hydroxide, Magnesium Hydroxide, Calcium Hydroxide, Ammonia, etc.
Convert 305 K to Celsius.
32 C
Mg + 2HCl --> MgCl2 + H2
What mass of hydrochloric acid (MM=36.5 g/mol) is needed to react with 2.50 moles of magnesium?
182 g HCl
What is the pH of a solution with a [H+] of 8.9 x 10-11
10.05
A combination of 2 or more substances that are not chemically combined.
Mixture
True or False:
Moles have an extra thumb on each forelimb that helps them dig.
True
What does the pH scale measure?
The pH scale measures how acidic an object is.
A line on a solubility graph that goes down from the left to the right shows that the solubility of a substance is ____.
How many moles of ammonia are produced when 6 mol of hydrogen gas react with an excess of nitrogen gas?
4 mol NH3
What is the pOH of a solution that has a hydroxide ion concentration of 4.82 x 10-5 M?
pOH = - log [4.82 x 10-5] = - ( - 4.32) = 4.32
When calculating the concentration of a solution, which measurement goes on the top of the formula?
Grams